以丁酮、草酸二乙酯为原料，经Claisen缩合、Knorr环合和甲基化等多步反应合成了8个结构新颖的1-甲基-1H-吡唑-5-甲酰胺类化合物，其结......

(E)-α,β-Unsaturated pyrazoleamides undergo facile dienolization to furnish copper(Ⅰ)-(1Z,3Z)-dienolates as the major ......